FryingPan/framework/Generic/XMLDocument.h

   1 /*
   2  * Amiga Generic Set - set of libraries and includes to ease sw development for all Amiga platforms
   3  * Copyright (C) 2001-2011 Tomasz Wiszkowski Tomasz.Wiszkowski at gmail.com.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifndef XMLDATA_H_
  21 #define XMLDATA_H_
  22
  23 #include "LibrarySpool.h"
  24 #include "String.h"
  25 #include "VectorT.h"
  26
  27 #include <libdata/expat.h>
  28
  29 /*
  30  * this class relies on expat2.library (both binary and include files) that i have created...
  31  */
  32
  33 struct Expat2IFace;
  34
  35 namespace GenNS
  36 {
  37    class XMLAttribute
  38    {
  39    protected:
  40       String                  sName;
  41       String                  sValue;
  42
  43    protected:
  44       virtual void            Initialize(const char* sN, const char* sV);
  45       virtual void            Initialize(const char* sN, int64 lV);
  46
  47    public:
  48       XMLAttribute();
  49       XMLAttribute(const char* sName, const char* sValue);
  50       XMLAttribute(const char* sName, int64 sValue);
  51       virtual                ~XMLAttribute();
  52
  53       virtual String         &GetName();
  54       virtual String         &GetValue();
  55       virtual void            SetName(const char* sName);
  56       virtual void            SetValue(const char* sValue);
  57       virtual void            SetValue(uint64 sValue);
  58    };
  59
  60    class XMLElement : public XMLAttribute
  61    {
  62    protected:
  63       VectorT<XMLElement*>    hChildren;
  64       VectorT<XMLAttribute*>  hAttributes;
  65
  66    protected:
  67       virtual void            Initialize(const char* sN, const char* sV);
  68       static bool             freeAttr(XMLAttribute* const& attr);
  69       static bool             freeNode(XMLElement* const& node);
  70    public:
  71       XMLElement();
  72       XMLElement(const char* sName, const char* sValue);
  73       virtual                ~XMLElement();
  74
  75       virtual long            GetChildrenCount();
  76       virtual XMLElement     *GetChild(long i);
  77       virtual long            GetAttributesCount();
  78       virtual XMLAttribute   *GetAttribute(long i);
  79       virtual String         *GetChildValue(const char *sName);
  80       virtual String         *GetAttributeValue(const char *sName);
  81       virtual XMLElement     *FindChild(const char* sName);
  82       virtual XMLAttribute   *FindAttribute(const char* sName);
  83
  84       virtual XMLElement     *AddChild(const char* sName, const char* sValue);
  85       virtual XMLAttribute   *AddAttribute(const char* sName, const char* sValue);
  86       virtual XMLAttribute   *AddAttribute(const char* sName, int64 lValue);
  87       virtual XMLElement     *AddChild(XMLElement* pElem);
  88       virtual XMLAttribute   *AddAttribute(XMLAttribute *pAttr);
  89       virtual void            RemChild(XMLElement* pElem);
  90       virtual void            RemAttribute(XMLAttribute* pAttr);
  91    };
  92
  93    class XMLDocument : public XMLElement
  94    {
  95    public:
  96       enum XMLError
  97       {
  98          XErr_OK     =  0,          // all ok
  99          XErr_NoExpat,              // unable to open expat2.library
 100          XErr_NoFile,               // unable to open file
 101          XErr_NoMemory,             // not enough memory
 102          XErr_CorruptedXML,         // corrupted xml file
 103          XErr_NoParser              // unable to create parser
 104       };
 105
 106    protected:
 107       Expat2IFace         *pExpat;
 108       String               sFileName;
 109       XML_Parser           pParser;
 110       XMLError             eError;
 111       int                  level;
 112
 113       VectorT<XMLElement*> hParse;
 114
 115       static void          fXMLStartHandler(void* userData, const XML_Char *name, const XML_Char **atts);
 116       static void          fXMLEndHandler(void* userData, const XML_Char *name);
 117       static void          fXMLContentHandler(void* userData, const XML_Char *begin, int length);
 118       void                 XMLStartHandler(const XML_Char *name, const XML_Char **atts);
 119       void                 XMLEndHandler(const XML_Char *name);
 120       void                 XMLContentHandler(const XML_Char *begin, int length);
 121       void                 XMLWriteElement(BPTR fh, XMLElement* pElem);
 122    public:
 123       XMLDocument();
 124       XMLDocument(const char* sName);
 125       virtual             ~XMLDocument();
 126
 127       bool                 ReadXML(const char *sName);
 128       bool                 WriteXML(const char *sName);
 129       bool                 ReadXML(BPTR file);
 130       bool                 WriteXML(BPTR file);
 131       XMLError             GetError();
 132    };
 133 };
 134
 135 #endif /*XMLDATA_H_*/